Eyelet-setting machine



March 25 924. 1,487,731

E. F. H. ENNA ET Ai.

EYELET SETTING MACHINE.

Filed Sept. l1 1922 f/@MM 17 @QW aras ERNST F. H. ENNA AND ANTON HAAHB, OF COPENHAGEN, DENMARK; SAID HAAHR ASSIGNGR TO SAID ENNA.

EYELET-SETTING TEACHINE.

Application led September 11, 1922.

To @ZZ cl2/20m t may concer/n.'

Be it known that we, ERNST F. H. ENNA and ANTON HAAHR, subjects of the King of Denmark, residing at Copenhagen, Denmark, have invented new and useful Improvements in Eyelet-Setting Machines, of which the following is a specification.

This invention relates generally to the parts or elements of an eyelet-setting machine which include the setting member and the elements which cooperate therewith in spreading andsplitting the end of an eyelet barrel opposite the previously formed fiange or head, andin clenching the prongs into which the barrel end is split, to completely setA the eyelet in the material by which it is carried.

The invention relates in particular to said elements, when organized to perform the operation of blind eyeleting. the eyelet being inserted, in some instances, in the inner side of a group composed of a plurality of superimposed layers including an inner facing layer, a lining, and an outer layer constituting an exposed portion of a shoe upper.

In other instances the eyelet is inserted from the outer side of the `group of layers. In each instance the eyelet is clenched in and secured to layers at one side of the group and concealed by the layer at the opposite side without being engaged therewith.

The chief object of the invention'is to provide means whereby the eyelets are effectively clenched between the engaged layers and the concealing layer, without liability of entering, or in any way engaging the concealing layer, so that the latter is entirely separate from the eyelets.

The invention is embodied in improved means for accomplishing t-he above-mentioned and other objects of the invention.

Of the accompanying drawings forming a part of this specification,-

Figure 1 is a front elevation, partly in vertical section, showing the elements constituting the preferred embodiment of the invention, associated with other elements of an eyelet-setting machine.

Figure 2 is a side elevation, partly in vertical section, showing the elements illustrated by Figure 1.

Serial No. 587,297.

lar punch, adapted to form coinciding holes in a plurality of superimposed layers of material, although it may be adapted to set eylets in previously punched holes, inwhich case it will not be formed as a punch.

The setting member is enlarged above its .lower end, to Vprovide a circumferential downwardly facing setting shoulder 13,

adapted to split and spread one end of the barrel of an eyelet pressed against said shoulder, the eyelet having at its opposite end the usual previously formed Yflange or head. Y

The upper end portion of the setting member is externally screw-threaded, and engaged with a tapped socket 14, in a vertically-reciprocating plunger 15, which is movable in a fixed guide 16, suitably supported on the frame of an eyelet-settingv i machine of av well known type, such as the Glass machine, disclosed by Letters Patent of the VUnited States, No.'686,928, dated November 19, 1901, or 673,815, dated May 7, 1901. The setting machine is equipped with the usual anvil 17, yon which the head of the eyelet rests, and with the usual positioning point 18, which catches and properly positions the eyelet upon the anvil, as the eyelet is fed from the reservoir through the chute or raceway of the Inachine.

To the plunger 15 is fixed, as by nuts 19, a cross-head 20, having a recess 21, in its outer side, the upper and lower sides 22 of said recess forming khorizontal guides inV which a block 23 is moved by any suitable means to vertically reciprocate the cross-head and plunger. As here shown, the block 23 is provided with a socket 24., in which may be loosely tilted a wrist-pin, to which an orbital movement is imparted in such manner to cause the block to move both horizontally and vertically, the block sliding from end to end o." the guides 22, and at the same time reciprocating the cross-head and plunger vertically.

Projecting trom the inner side of the blocl 23 is a lug` 26, which is movable in horizontal slot 2?, in the cross-head 23, and is provided with inclined or bevelled side faces, preferably curved, as shown by dotted lines in Figure l, and adapten to engage correspondingly bevelled end faces 28, on the upper end orP a cylindrical slide or secondary plunger 29, which is vertically movable to a. limited extent in the bore of the plunger l5, the latter, which may be called the primary plunger, being tubular above its lower end portion, to form a guide for said secondary plunger.

represents rino; or sleeve, which embraces and is slidablc 'to a limited civ tent on the reduced lower end portion l5 ot the primary plunger, and is normally held yieldii ,l y, by means presently described, against shoulder 15 at the upper end ot said reduced portion. The ring is provided with a. pair of upwardly projecting arms 3l, which are movable in vertical `guiding` slots in opposite sides of the lined guide 1G.

To the upper ends of the arms is secured a transverse pin closely litted in a transverse orifice in the secondary plunger 29).y and passing' through vertical slots 34 in the primary plunger 15 A spring 35 intel'- posed between the lower end ot the secondary plunger. and an abutment 36, formed by the closed end of the bore ont the primary plungen normally holds the ring' yieldw ingly against the shoulder l5", and yield- Q'ly supports the secondary plunger with its bevellcd end faces El in the path ol" the block lua- 26.

The riircr 30 is provided at its lower end with a reduced c zternally threaded nipple T, with which is adjustably engaged an nnular hammer. composed of a base 38, internally 'threaded to engage the nipple and a sleeve 39. surrounding a portion o the setting member l2, and provided with an inwardly projecting' annular Yflange 40. which constitutes the hea-.il of the hammer and surrounds the sett-ing member above the shoulder 13.

lli/"nen the primary plunger 15 is raised. the setting' member 12 is spaced from the anvil 17. as shown by Figures l and 2, the blocl r23 being at one end ot its movement in the cross-head so that the lug 26 is spaced from the end faces 28 of the secondary plunger. as shown by ligure l. The movement oic the blc-ck which `depresses the cross-head and the primary plunger, causes said nl r and the `secondary plunger 29 t 1 downward in unison, until the ot the barrel ot an eyelet d, i is supported by the anvil 17,

l and spread by the shoulder .lf '-member, as shown by Figui the settin member reaches tl. V e lug` 26 o't the block encounters one et the end faces 2S, and in passadditionally depresses ver 29, thereby depresse, the position shown by Y hammer in moving;- to this tl rough the layer -lz-, hereino complete the clenching o? hat the eyelet is clon-'l ed by 1u, one following; the other.

he described mechanism 'for he eyelet is inserted in and perimposed layers @ll and 42, y clenched on a concealing perimposed on the layer 42. which is provided with orifices layer 4:3, The layer coinciding? withl the eyelet-receiving orifices in the layers il and l2, enfibra ces the setting member, above the shoulder lil. and bears on the head lll o? the hammer, said orifices being' Vtoirmed by the setting member when the latter is formed as a punch. The descent ot the setting' member to the position shown by Figure causes the shoulder 13 to partially spread the eyelet barrel to such an extent that the spread end is of greater dianeter than the ori in the ecueenling:v layer il-3, before said layer is pressed by the hammer head l0 against the barrel. The completion oiC the spreading of the eyelet barrel is therefore effected without liability ot the entrance ot the pronos formed by the clenchinn` of the eyelet into the concealing` layer, the latter being; pressed by the hammer hea d l() against the clenched end of the barrel. without being' penetrated. by the prongs. and theretore without adhesion to the clenched eyelet. The prongs ot the clenched eyelet easily find their way between the layers 42 and 453. without engaging the latter, so that the concealiugir layer is entirely tree 'trom the eyelet alter the clenchingr operation.

The block lu;r 25. in passing` across one ot the 'laces 28., imparts a quick downward movement or hammer blow tothe hammen and this is followed by a quick upward movement of the hammer caused by the sprin The adjustable connection between the hammer and the ring SCM embodied in the externally threaded nipple 37. and the in ternally threaded base 3S. enables the hammer to be raised or lowered relatively to the ring. by rotation on the nipple. and thus conformed to the thickness ot the concealine lay 43.

To prevent accidental rotation or the hanr mer on the nipple 3T, a spring latch or detcnt -l5 is provided, this being a resilient metal strip attached by a screw 46 to one of the arms 3l, and having asfree end formed as shown by Figure 3, to engage teeth formed on the hammer base 38, the teeth and detent being formed to permit a forcible rotation of the hammer and pre vent an accidental rotation.

To compensate for wear of the secondary plunger faces by the block lug, and 'to regulate the forceV of the hammer blow` we provide means for adjusting the secondary plunger vertically with relation to the primary plunger. so that the secondary plunger may be moved slightly upward, as occa-Y sion may require. To this end, the stud 33 may have an eccentric portion 33, (Figures l and l), rotatable in a slot in the secondary plunger 29, to raise the latter. Or, as shown by Figure 5, one of the arms 31 may be provided with a tapped socket, en- `gagiirg a screw 48, having a. conical inner end bearing on one side of a conical socket 49, formed in the primary plunger, and out of alinement with the screw. `When the screw is turned inward, its conical end slides on the wall of the socket e9, and raises the secondary plunger.

117e are not limited to the specific mechanism of the preferred embodiment of the invention shown by the drawings, eXcept as otherwise required in certain of the more limited claims hereto appended.

We claim:

l. An eyelet-setting device, comprising a setting member adapted to cooperate with an anvil in partly spreading an eyelet barrel inserted in adjacent layers; a hammer ada-pted to cooperate with the' anvil and with a concealing layer in clenching the eyelet on one of said adjacent layers; means for depressing said setting member and hammer successively. so that the partial spreading of the eyelet precedes the clenching thereof, and the cleuchin'g is effected wholly at one side of the concealing layer, and means for guiding the setting member and hammer in the performance of their functions.

2. An eyelet-setting device substantially as specified by claim L comprising also means for adjusting said hammer toward and from the lower end of the setting member, according to the thickness of said layers.

3. An eyeletssetting device substantially as specied b v claim l, the said depressing means including a primary plunger rigidly connected with the said setting member, a secondary plunger rigidly connected with said hammer and independently movable to a limited extent, and mechanism organized to first depress the setting member, and then depress the hammer while the setting member is at rest.

4. An eyelet-setting device substantially as specified by claim 1, the said depressing cans including a primaryY plunger rigidly connected with said setting member and provided with a cross-head having upper and lower guides transverse to saidplunger, a secondary plunger rigidly connected with said hammer and having bevelled end faces, a spring yieldingly maintaining said end faces above the lower guide, anda block movable on said guides to depress the primary plunger, and provided ,with a bevelled lng which is movable across said faces to independently depress the secondary plunger and the hammer.

5. An eyelet-setting device substantiallyas specified by claim l, comprising also adjusting means for said hammer including an eX- ternally threadednipple, and an internally threaded base on the said hammer, engaged with and rotatable on said nipple to adjust the hammer.

6. An eyelet-setting device substantially as specified by claim l, comprising also adj usting means for said hammer including an externally threaded nipple, an internally threaded base on the said hammer, engaged with and rotatable on saidV nipple to adjust the hammer, teeth on said base, and a spring latch yieldingly engaging said teeth to prevent accidental rotation of the hammer.

7. An eyelet-setting device substantially as specified by claim l, the said depressing means including a* primary plunger rigidly connected with said setting member and provided with a cross-head having upper and lower guides transverse to said plunger, a secondary plunger rigidly connected with said hammer and having bevelled end faces, a spring yieldingly maintaining said end faces above the lower guide, a block movable on said guides to depress the primary plunger and provided with a bevelled lug which is movable across said faces to independently depress the secondary plunger' and the hammer, and means for adjusting the secondary plunger to compensate for wear of the end faces thereof and regulate the force of the hammer blow.

8. An eyelet-setting device comprising a fixed tubular guide having longitudinal slots, a primary plunger movable in said guide, a setting member fixed to the primary plunger, a secondary plunger movable in the primary plunger providedlwith bevelled up- Y per end faces, an annular hammer formed to surround the setting member, means rigidly connecting the hammer with the secondary plunger, said means including'Y upwardly projecting arms on the hammer slidable in the said slots in the fixed guide, a transverse pin secured to the said arms and engaged with the secondary plunger, the primary plunger being provided with slots permite ting a -limited independent movement of the secondary plunger and the hammer, aspring interposed between the secondary plunger'` and an abutment in the primary plunger, whereby the secondary plunger is yieldingly raised, a cross-head rigidly attached to the primary plunger and provided with transversely extending upper and lower guides, and a block movable on said guides to reciprocate the crosshead, and provided with a bevelled lug, which is reciprocated in the crosshead by the block, the arrangement being such that the end 'faces of the secondary plunger are normally held by said spring in the path of said lug, the movements of the block and lug irst depressing the primary plunger, and then depressing the secondary plunger, while the primary plunger is at rest.

9. An eyelet-setting device substantially as specified by claim 8, comprising also means 'for vertically adjusting the secondary plunger.

lO. An eyeletesetting device substantially as speciiied by claim 8, the said transverse pin being rotatable, and provided with an eccentric portion within the secondary plunger, whereby the latter may be vertically adjusted.

ln testimony whereof we have axed our signatures.

ERNST F. H. ENNA. ANTGN HAAHB. TWitnesses for Mr. Haahr:

Grin. ZEMINNTZ,

0. R. SUGFRER,

Trino NALLE,

AWRELSON Love. 

